phpstan fix: Model covariants in Scope generics

Builds on changes in recent commit:
Commit ID: c32f52ce7c
Change ID: qsnosyvyulxzrnzorpxqwqqztmqorsmk

src/Database/Concerns/PendingScope.php

@@ -14,7 +14,7 @@ class PendingScope implements Scope
     /**
      * Apply the scope to a given Eloquent query builder.
      *
-     * @param Builder<Model> $builder
+     * @param Builder<covariant Model> $builder
      *
      * @return void
      */

src/Database/ParentModelScope.php

@@ -12,7 +12,7 @@ use Illuminate\Database\Eloquent\Scope;
 class ParentModelScope implements Scope
 {
     /**
-     * @param Builder<Model> $builder
+     * @param Builder<covariant Model> $builder
      */
     public function apply(Builder $builder, Model $model): void
     {

src/Database/TenantScope.php

@@ -13,7 +13,7 @@ use Stancl\Tenancy\Tenancy;
 class TenantScope implements Scope
 {
     /**
-     * @param Builder<Model> $builder
+     * @param Builder<covariant Model> $builder
      */
     public function apply(Builder $builder, Model $model)
     {